19 Leonis Minoris

Spectroscopic binary in the constellation Leo Minor 19 Leonis Minoris 250 Leo Minor constellation map.svg center right Red circle.svg 7 19 Leonis Minoris 650 194 Location of 19 LMi (circled) J2000.0 (ICRS) Leo Minor 09 57 41.0544 +41 03 20.275 5.100.01 main sequence F6 V 0.00 +0.46 −8.62.6 34.5809 0.0926 −116.432 −25.860 +2.86 9.2835 days 2443858.21 JD commas 0.048 351 18.9 25.3 A B 1.290.19 20.1 6.410.04 3.980.03 6,48380 +0.09 5 2.474 1.01 19 LMi +41°966 +41°2033 374 13700 3574 86146 48833 3928 43115 19+LMi 19 Leonis Minoris (19 LMi) is a spectroscopic binary located in the northern constellation Leo Minor. It has an apparent magnitude of 5.1, making it one of the brighter members of the constellation. The system is relatively close at a distance of 94 light years but is drifting closer with a heliocentric radial velocity of 8.6 km/s. This spectroscopic binary can be classified as single lined because only the primary's spectrum can be observed clearly, with it having a stellar classification of F6 V. This makes it an ordinary F-type main-sequence star. The companion is probably a G-type main-sequence star of G0, having a mass 101% that of the Sun. The pair have a relatively circular orbit of about 9 days. 19 LMi has 129% the mass of the Sun and an effective temperature of 6483 K commas, giving a yellow white hue. The object is somewhat evolved at an age of 2.5 billion years, having a slightly enlarged radius of 2 y and a luminosity of 6.4 y, high for its class. 19 LMi has an iron abundance 123% that of the Sun, making it slightly metal enriched. It spins modestly with a projected rotational velocity of 5 km/s. References 806628225792165888 Høg E. Fabricius C. Makarov V. V. Urban S. Corbin T. Wycoff G. Bastian U. Schwekendiek P. Wicenec A. 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SB9: The ninth catalogue of spectroscopic binary orbits Astronomy & Astrophysics 23 August 2004 424 2 727–732 0004-6361 1432-0746 10.1051/0004-6361:20041213 2004A&A...424..727P astro-ph/0406573 free Category:G-type main-sequence stars Category:Spectroscopic binaries Category:Leo Minor Leonis Minoris, 19 BD+41 02033 3574 086146 048833 3928 Category:F6V stars Category:G0 stars